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A Volume V o...

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A Volume V of a viscous liquid flow per a unit time due to pressure head △ P ,along a pipe Of diameter d and length l instead of this pipe ,a set of four pipe each ofdiameter d/2 and length 2l is connected to same pressure head △ P . Now the liquid flow per unit time is 1. V/4 2.V/8 3. V/16 4. V

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V

of viscous liquid flows per unit time due to a pressure head

Δ P

along a pipe of diameter

D

L

. Instead of this pipe a set of

4

pipes each of diameter

\frac{D}{2}

2 L

is connected to the same pressure head

Δ P

. Now, the volume of the liquid flowing per unit time is:

Q. The velocity of a liquid (

v

) in steady flow at a location through cylindrical pipe is given by

v = v_{0} (1 - \frac{r^{2}}{R^{2}})

r

is the radial distance of that location from the axis of the pipe and

R

is the inner radius of the pipe, if

R = 10 c m

, volume flow rate through the pipe is

π / 2 \times 10^{- 2} m^{2} s^{- 1}

and the coefficient of viscosity of the liquid is

0.75 N s m^{- 2}

{16 c m}^{3}

volume of water flows per second through a capillary tube of radius r cm and of length 1 cm, when connected to a pressure head of h cm of water. If a tube of the same length and radius r/2 is connected to the same pressure head, find the mass of water flowing per minute through the tube

Q. For laminar flow through a long pipe, the pressure drop per unit length increases

Q. When a capillary tube is connected to a pressure head, V c.c. of water flows per second. If a tube of same length but half the radius is connected to the same pressure head, the quantity of water flowing through the tube per second will be ( in c.c):

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